Sahib Mohammed (2016) “GINGIVAL PIGMENTATION AND ITS ASSOCIATION WITH DENTAL CARIES AMONG STUDENTS IN DIYALA CITY, IRAQ”, International Journal of Medical Science and Dental Health, 2(01), pp. 01–04. Available at: https://www.ijmsdh.org/index.php/ijmsdh/article/view/84 (Accessed: 8 June 2026).